A compound X undergoes reduction with LiAlH₄ to yield Y. When vapours of Y are passed over freshly reduced copper at 300°C. X is formed. What is Y?
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Which of the following element is responsible for oxidation of water to O₂ in biological processes?
The compound formed in the borax bead test of Cu2⁺ ion in oxidising flame is
Which one of the following has the minimum boiling point?
Our sun belongs to which of the following spectra?
Consider the following compounds :
1. CH₂N₂
2. CH₂ = C = O
3. CH₂I₂
Those compounds which would generate a carbene on exposure to ultraviolet light include :
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Which of the following bonds has highest average bond energy ?
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The reaction N₂ + O₂ → 2NO is endothermic . The forward reaction is
The reaction of chloroform with alcoholic KOH and p-toludine forms
An exothermic reaction is one in which the reacting substances
Substances which bring body temperature down are known as
In which of the following compounds,carbon uses sp3 hybrid orbitals only for bonding ?
The standard reduction potential at 298 K for the following half cell reaction are given below
Which one is the strongest reducing agent?
At what temperature will the average speed of CH₄ molecules have the same value as O₂ has at 300 K
Select the true statement about benzene from amongst the following
Which of the following is not isomeric with diethyl ether?
A human body required 0.01 μC activity of radioactive substance for 24 hrs. Half life of radioactive substance is 6 hours. Then injection of maximum activity of radioactive substance (in μC) can be injected is
Aniline in a set of reactions yielded a product D
The structure of D is
In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer is